diff --git a/js/orchestrator.js b/js/orchestrator.js
new file mode 100644
index 0000000..9d8f144
--- /dev/null
+++ b/js/orchestrator.js
@@ -0,0 +1,70 @@
+import { app } from "/scripts/app.js";
+
+const WORKFLOW_TAGS = ["FLUX", "QWEN", "WAN2.2", "SDXL", "SD1.5"];
+
+function updateNodeStates(selectedWorkflow) {
+    const changesToApply = [];
+
+    // Phase 1 : On collecte les changements nécessaires sans toucher au graphe.
+    for (const targetNode of app.graph.nodes) {
+        if (targetNode.type === "OrchestratorNode") continue;
+
+        const title = targetNode.title || "";
+        let isTaggedNode = false;
+
+        for (const tag of WORKFLOW_TAGS) {
+            if (title.startsWith(`[${tag}]`)) {
+                isTaggedNode = true;
+                break;
+            }
+        }
+
+        if (isTaggedNode) {
+            const newMode = title.startsWith(`[${selectedWorkflow}]`) ? 0 : 4;
+            if (targetNode.mode !== newMode) {
+                changesToApply.push({ node: targetNode, mode: newMode });
+            }
+        }
+    }
+
+    // Phase 2 : On applique les changements de données silencieusement.
+    if (changesToApply.length > 0) {
+        for (const change of changesToApply) {
+            // On change UNIQUEMENT la donnée.
+            change.node.mode = change.mode;
+            // ON NE TOUCHE PAS à setDirty() ici.
+        }
+
+        // On ne demande qu'UN SEUL rafraîchissement global à la toute fin.
+        app.graph.setDirtyCanvas(true, true);
+    }
+}
+
+app.registerExtension({
+    name: "Comfy.OrchestratorNode.FinalAttempt",
+
+    beforeRegisterNodeDef(nodeType, nodeData, app) {
+        if (nodeData.name === "OrchestratorNode") {
+            const onNodeCreated = nodeType.prototype.onNodeCreated;
+            nodeType.prototype.onNodeCreated = function () {
+                onNodeCreated?.apply(this, arguments);
+
+                const widget = this.addWidget(
+                    "combo",                      
+                    "Active Workflow",            
+                    WORKFLOW_TAGS[0],             
+                    (value) => {
+                        setTimeout(() => {
+                            updateNodeStates(value);
+                        }, 0);
+                    },
+                    { values: WORKFLOW_TAGS }     
+                );
+
+                setTimeout(() => {
+                    updateNodeStates(widget.value);
+                }, 200);
+            };
+        }
+    },
+});
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